Ikinari Kunoichi

This hentai game tells the story of a kunoichi (female ninja) girl who sexually attacks you and it is up to you to push the button as fast as you can to hold your load. In the middle, she will usually start doing something more, so you need to stay sharp. You can expect to see ahegao, paizuri, tekoki, and other sexual positions in their most intense forms. As you progress through the game, you can also check all available buttons with options. There may be something there that will help you feel better. If you're on a laptop, you can click fast enough by using the mouse and touch-pad at the same time.